Abstract

In calibrating instruments that measure reflectance and transmittance to a few tenths of a percent, it is desirable to have a sample that is smooth, uniform, nonabsorbing, and stable, so that the measured reflectance and transmittance will add to unity, and no light will be either absorbed or scattered outside the collecting optics. A properly prepared, thin, transparent, high index film (such as CeO2 or TiO2) on a fused quartz substrate is suitable for a calibration sample. Equations are given to calculate the reflectance and transmittance both at normal incidence and nonnormal incidence, as well as to correct for multiple reflections in the substrate and reflection from the back surface of the substrate. Factors such as aging and optical thickness nonuniformity, which can introduce systematic errors into the calibration, must be minimized by proper choice of materials and preparation techniques.

© 1972 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spectrophotometer for measuring spectral reflectance and transmittance

Peiyun Wu, Peifu Gu, and Jinfa Tang
Appl. Opt. 33(10) 1975-1979 (1994)

Optical constants and reflectance and transmittance of evaporated rhodium films in the visible*

J. K. Coulter, G. Hass, and J. B. Ramsey
J. Opt. Soc. Am. 63(9) 1149-1153 (1973)

Determination of optical constants of thin films and multilayer stacks by use of concurrent reflectance, transmittance, and ellipsometric measurements

Chubing Peng, Rongguang Liang, J. Kevin Erwin, Warren Bletscher, Kenichi Nagata, and Masud Mansuripur
Appl. Opt. 40(28) 5088-5099 (2001)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (2)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (9)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription